Imagine that everyone thinks you're the victim. Your home world becomes the catalyst for galactic war. You marry the man of your dreams, but he turns out to be a monster. You die giving birth to his children.
And everyone believes all of this is caused by the ambitious politician you yourself helped maneuver into power.
Recipe for a perfect cover story, right? I mean, you already concealed the fact of your marriage to this monster. No one knew anyway. Only the man who became the monster. Convenient.
You were in the perfect position all along to manipulate both men, to drive the message. The fact of your death was most convenient of all. You never had to face the consequences.
Padme Amidala, queen and senator of Naboo, you were Darth Sidious, master of the Sith, the ultimate force of evil, the downfall of trillions, the enslaver of countless worlds, the destroyer of the Jedi.
And everyone loves you for it. Sometimes it pays to sacrifice yourself. The truth dies with you.